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Because a Prime number is a number that can only be divisible by two numbers: itself and one. The number 1 can be divisible by 1 and itself which is 1. 1 and 1 count as one number (hope this makes sense) therefore making it not a prime.
What else can I help you with?
How many prime factors does 32 have?
32 has one prime factor: 232 has only one prime factor: 2
What is a prime factor of 27?
27 has only one prime factor: 3
What is a prime factor of 125?
125 has only one prime factor: 5
Is 9 a prime factor?
9 is not a prime factor, but it does have one prime factor, which is three. Prime factors are factors of a number that are prime.
Which whole number has a factor that is greatest prime factor between 1and 30?
Oh, dude, the whole number with the greatest prime factor between 1 and 30 is 30 itself. The greatest prime factor of 30 is 5, which is the largest prime number between 1 and 30. So, yeah, 30 takes the crown for this one.
What number has only one prime factor?
No prime number only has one factor. Each prime number has itself and 1 as factors. Now, the number 1 of course has only one factor, but it is technically not a prime number.
What is semiprime number?
One with one prime factor and one other factor ...or it might be one with two factors both of which are prime...
Which prime number has one factor?
By definition, all prime numbers have exactly two factors. There is not a prime number that has only one factor.
Is a prime factor the same as a proper factor?
No, a prime factor is a single factor that is a prime number. A proper factor is a member of the set of factors that doesn't include one and the number itself.
Why a prime number cannot be written as a product of prime factors?
A prime number has only one prime factor, and that prime factor is the number itself.
How do you express the prime numbers in factor tree method?
Since prime numbers only have one prime factor (themselves), factor trees are unnecessary.
How you know that 2 is a prime factor?
2 is a prime number because its only factors are one and itself. Since 2 is a prime number, if it is a factor of your number, it is a prime factor.
